Triangle Sum Theorem Assignment

Front

What is the Triangle Sum Theorem?

Back

The Triangle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees.

Tags

CCSS.8.G.A.5

Front

If one angle of a triangle is 90 degrees, what is the sum of the other two angles?

Back

The sum of the other two angles is 90 degrees, since the total must equal 180 degrees.

Tags

CCSS.8.G.A.5

Front

Solve for x: 2x + 30 = 180

Back

x = 75

Tags

CCSS.8.G.A.5

Front

What is the measure of each angle in an equilateral triangle?

Back

Each angle in an equilateral triangle measures 60 degrees.

Tags

CCSS.8.G.A.5

Front

If two angles of a triangle are 45 degrees and 55 degrees, what is the measure of the third angle?

Back

The third angle measures 80 degrees.

Tags

CCSS.8.G.A.5

Front

Solve for x: 3x + 2x + 30 = 180

Back

x = 30

Tags

CCSS.8.G.A.5

Front

What is the relationship between the angles in a right triangle?

Back

In a right triangle, one angle is 90 degrees, and the sum of the other two angles is 90 degrees.

Tags

CCSS.8.G.A.5

Front

If one angle of a triangle is 25 degrees and another is 65 degrees, what is the third angle?

Back

The third angle is 90 degrees.

Tags

CCSS.8.G.A.5

Front

Solve for x: x + 45 + 55 = 180

Back

x = 80

Tags

CCSS.8.G.A.5

Front

What is the measure of the angles in a triangle with angles of 70 degrees and 40 degrees?

Back

The third angle measures 70 degrees.

Tags

CCSS.8.G.A.5